BioStacks
Best for
Ingredients (4)
Vitamin D
100%Dose
1200 IU
Target
1000–5000 IU
Form
Premium
Zinc
50%Dose
7.5 mg
Target
15–30 mg
Form
Standard
Vitamin C
36%Dose
90 mg
Target
250–2000 mg
Form
Budget
Black Elder Extract standardized to anthocyanins from 3,200 mg of premium cultivar elderberries
63%Dose
50 mg
Target
80–500 mg
Form
—
Other Ingredients (8)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
Tapioca SyrupSweetener
High glycemic index similar to glucose syrup. Adds significant sugars and calories — often the primary ingredient by weight in gummy supplements. 'Organic' labeling does not change the glycemic impact.
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
BeeswaxCoating
Natural wax produced by honeybees, used as a coating and binding agent in softgels and tablets
Citric AcidAcidulant
Natural acid derived from citrus fruits
PectinGelling Agent
Plant polysaccharide from citrus peels or apple pomace used to gel pectin-based gummies
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
Sodium CitrateBuffer
Sodium salt of citric acid used for pH control, tartness, and chelation in gummies
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.